The Wildcats, without four players either due to discipline or injury, led by as many as 21 points in the first half. The Lumberjacks cut it to 10 in the opening minute of the second half before Arizona blew the game open.

Arizona also was without two assistant coaches, most notably Book Richardson, who has been indicted on federal bribery and fraud charges and remains on the school payroll.

As announced by the school earlier in the day, assistant coach Mark Phelps is serving a two-game suspension for an undisclosed NCAA violation and forward Keanu Pinder was out for one game, also due to an NCAA violation.

Among players, Dylan Smith is serving a one-game suspension for a team violation. Brandon Randolph is being treated for a concussion and Rawle Alkins has a broken foot.

The Wildcats shot out to a 13-4 lead and were up 45-24 after Trier's two free throws with 4:58 to play.

Trier's breakaway dunk on a turnover had Arizona up 49-29 with 2:51 to play.

Northern Arizona scored the final seven of the half to cut the Wildcats' lead to 49-36. The NAU run reached 10-0 when Chris Bowling opened the second half with a 3-pointer to cut Arizona's lead to 49-39.

Trier, who flirted with going pro but returned for his junior season, made 10 of 13 shots, including both of his 3-point tries, and 10 of 11 free throws.